cookies

var cookies =document.cookie.split(';');

    for (var i = 0; i < cookies.length; i++) {

        var cookie = cookies[i];

        var eqPos = cookie.indexOf("=");

        var name = eqPos > -1 ? cookie.substr(0, eqPos) : cookie;

        document.cookie = name + "=;expires=Thu, 01 Jan 1970 00:00:00 GMT";

    }


document.cookie.split(";").forEach(function(c) {
document.cookie = c.replace(/^ +/, "").replace(/=.*/, "=;expires=" + new Date().toUTCString() + ";path=/");
});